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A079784 Triangle read by rows in which the n-th row contains the smallest set of n consecutive numbers such that the r-th number in the n-th row is divisible by n-r+1. The first term of the n-th row must exceed n. 3
2, 4, 5, 9, 10, 11, 8, 9, 10, 11, 55, 56, 57, 58, 59, 54, 55, 56, 57, 58, 59, 413, 414, 415, 416, 417, 418, 419, 832, 833, 834, 835, 836, 837, 838, 839, 2511, 2512, 2513, 2514, 2515, 2516, 2517, 2518, 2519, 2510, 2511, 2512, 2513, 2514, 2515, 2516, 2517, 2518 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..54.

EXAMPLE

Triangle starts:

2;

4,   5;

9,   10,  11;

8,   9,   10,  11;

55,  56,  57,  58, 59;

54,  55,  56,  57, 58, 59;

413, 414, 415, ...

The fifth row 55,56,57,58,59 is divisible by 5,4,3,2 and 1 respectively.

CROSSREFS

Cf. A079781, A079782, A079783.

Sequence in context: A242398 A174112 A111490 * A189210 A188969 A189096

Adjacent sequences:  A079781 A079782 A079783 * A079785 A079786 A079787

KEYWORD

nonn,tabl

AUTHOR

Amarnath Murthy, Feb 03 2003

EXTENSIONS

Corrected and extended by Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 29 2003

STATUS

approved

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Last modified October 27 07:47 EDT 2021. Contains 348272 sequences. (Running on oeis4.)